Water-motor.



W. C. FAWKES.

WATER MOTOR.

APPLIOATION FILED DEO.28, 1908.

Patented Oct. 19,1909.

@ly/l/l/ UNITED s'rATEs PATENT OFFICE. 'y

WIfBEBT C- Rawlins, .0r Mnmnaeopxs, meson l wewmnoma. f

Specification ot Letters ratent. Mmmm nieu member 28,1008. serial no. 469,600.

Patented oet. 19,1909.

To all v'whom 'it may concern:

Be it known that I, Wnnn'r C. FAWKES of Minneapolis, Hennepin county, Minnesota, have invented certain new and useful Improvements in Water-Motors, of which the' following is a s eciiication.

My invention re ates to water motors, particularlyV those of the rotary type and the object of mydnvention is to provide a motor having a longer stroke than usual in machines .offthis ln'nd.

Most motors ofthe rotary type are so constructed that the oscillating piston can only describe a little more than half of a revolution. With my apparatus, a stroke in excess of two-thirds is obtained, thereby greatly in creasing the eiiiciency of the motor and its capacity with a given supply of Walter.

A., further object is to provide a valvev chamber, having valves arranged to form a square contact with the piston, thereby preventing any possibility of stlcking of the valves, due generally to their indlrect e'ngaiement with the iston. e

further object 1s to provide valves and means connecting them, which will insure their positive umform movement under the pressure of the piston. 4

Mylinvention consists generally in ,various constructions and combinations, al1 as here` inafter described and particularly pointed out in the claims.

In the accompanying drawings, forming part of this s ecication, Figure 1 is a vertical, sectiona view of a rotary motor embodying m invention, Fig. 2 is a horizontal, sectional view-at right angles to the section line of Fi 1, illustratin Fig. 3 is a detail sectional view, illustrating thtla construction and arrangement of the va ves.

In the drawing, represents a cylindrical -between its outer walls and the shaft 3. The

interior vof this casing is divided into valve chambers 7 and 8,separated from one another by@ Wall' 9. In these chambers valves 10 and 10 and 11,and p11 are arranged, each valve the manner ofmounting t e valves in sli 'ng valve blocks.

having a coiled spring 12 at its outer end projectin into the pathv of the oscillating piston. 'Ihe valves have spirally arranged webs thereon, which when struck by the water flowing through the valves, will cause rotation of the valves `and insure the proper seating of them, when they are closed. The valvecasing, as indicated in Fig. 2, is segmental in form, its walls coinciding with the radii of the cylinder, this construction allowing me to arran e the valves, so that their uter ends will e nearer the center of the cylinder than their inner ends and the contacting springs will squarely engage the surfaces of .the oscillating iston, thus insurfing movement of each vave and preventing t em from binding or sticking, which frequently happens when the piston strikes the valve at an angle. When'the valve on vone side of the'chamber opens, the corresponding valve on the other side should close I-.therefore, provide blocks 13 arranged to slide between the wall 'of the casing and lugs 13 in said chambers and having sockets '14 therein, adapted to receive heads 15 provided on the inner ends of the valves. Necks 16, connecting the said heads with the'valves,

y are adapted to slide in grooves 17 to allow the` valves to accommodate themselves to the. position of the sliding blocks. It will be understood from an examination of Fig. 2, that these blocks move on the arc of a circle, the valves oscillating in their bearings. therein and following the blocks back and forth, as the valves are struck b the swinging piston. I have found, in a evice of ythls kind, that to be successful and practical, each valve must work perfectly. That is, it must open and close freely and when in its closed position, must seat itself. and remain seated until again struck by the piston. I have found that by using the sliding block with the valves having Aba l and socket connections therewith, a positive, uniform movement of each valve is lnsured and there is no possibility of the valve sticking lorbeing unevenly seated, when closed. Furthermore, this connection allows me to prnvide a compact valve chamber, bringing the opposite valves close together and insuring a 4longer stroke for thepiston than is possible wit motors of this kind, as usually made. I .claim as my'inventionz' f 1. In a water motor, a. cylinder, an oscillating" iston therefor, a valve casin divided into ambers and valves 'there or, land blocks arranged to slide between uides in said chambers and having swivele connec'- tions with said valves substantially as de'- scribed. y

2. In a water motor, the combination o f the. cylinder, of. an oscillating piston, a valve casing interposed between the walls of said piston therefor, a valve casing arranged within said cylinder and divided interiorly into valve chambers, valves provided within said chambers, blocks slidable within said chambers and having swiveled connections with said valves.

4. A water motor, comprising a cylinder, an oscillating piston therefor, a valve casin interposed between the walls of said cy inder and the axis of said piston and cameo havin' valve chambers, of valves arranged in said c ambers, blocks shdable 1n said chambers and having sockets therein to receive of said cylinder and the axis of said pis'- ton and divided interiorly into 'valve chambers, valves arranged in said chambers, sliding means forming a swiveled connection between the valves on opposite sides of said casing and allowing said 'valves to square themselves with the contacting surfaces of .the piston, substantially as described.

In witness whereof, I-have hereunto set my hand this 14th day of December 1908.

WILBERT C. FAWKES. Witnesses:

RICHARD PAUL, J. A. BYINGTON. 

